9.76% is the change from 666 to 731
Calculation steps:
[( 731 - 666 ) ÷ 666] x 100 = 9.76%
Formula
Percentage change = [(731 - 666) / 666] x 100
Subtract the new number by the original number
731 - 666 = 65
65 ÷ 666 = 0.09759759759759759
0.09759759759759759 x 100 = 9.76%